Quantcast Section VII. CLYINDER BLOCK

 

Click here to make tpub.com your Home Page

Page Title: Section VII. CLYINDER BLOCK
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Figure 11-39. Crankshaft and main bearings, disassembly and reassembly.
Up
TM-10-3930-630-34 Truck Lift Fork GED Solid Rubber Tired Wheels 4000 lbs Capacity 100 and 180 Inch Lift Manual
Next
Figure 11-41. Cylinder block, disassembly and reassembly
TM 10-3930-630-34
bolts to a torque of 85 to 95 foot pounds (115.2 to 128.8
NĚ ).
m
(5)  Try to turn crankshaft by hand. If a definite
drag is felt, the bearing and crankshaft are in tolerance.
(6)  Remove bearing cap and remove feeler
stock. Repeat operation for each main bearing, one at a
time.
11-37. Crankshaft and Main Bearing Reassembly
FILLET RADII.
and Installation
0.078 TO 0.108 INCH ON ALL CRANKPINS AND
a. Reassembly.
MAIN BEARINGS EXCEPT REAR MAIN BEARING.
(1)  If not already installed, install upper main
0.110 TO 0.140 ON REAR MAIN BEARING.
and connecting rod bearing shells.
(2)  Carefully lift and install crankshaft (16, fig.
TA067480
11-39) in engine block.
Install lower main and
Figure 11-40. Crankshaft fillet radii.
connecting rod bearing shells on journals.
(3) Install main bearing caps and tighten bolts to
(4)
Check bearing thickness with a micrometer
85 to 95 foot pounds (115.2 to 128.8 NĚ ).
m
(a)  Main  bearing  thickness  must  be
(4)  Install connecting rod bearing caps and
0.0925 to 0.0928 inch (2.34 to 2.35 1mm).
tighten nuts to 40 to 45 foot-pounds (54.2 to 61.0 NĚ ).
m
(b)  Connecting  rod  bearing  thickness
(5)  Refer to paragraph 11-12 and install oil
must be 0.0616 to 0.0613 inch (1.56 to 1.55 mm).
pump and secure to main bearing cap with nut and
(5)  Replace main bearings if thickness is less
lockwasher.
than 0.0920 inch (2.33 mm). Replace connecting rod
(6)  Install key (7, fig. 11-39) and gear (6) on
bearings if thickness is less than 0.608 inch (15.4 mm).
crankshaft. Use a driving sleeve to tap gear snugly in
k.  Check bearings as follows:
place. Install pump coupling (4) and retaining rings (2).
(1)  Install upper shells of main bearings and
Secure coupling and gear with screw (1). Tighten screw
connecting rod bearings in block and connecting rod.
to a torque of 140 to 150 foot pounds (189.8 to 203.3
(2)  Install crankshaft in block and connecting
NĚ ).
m
rods.
b. Installation.
(3)  Place a piece of feeler stock, 0.0010 inch
(1)  Refer to paragraph 11-23 and install fan
(0.0025 mm) thick across main bearing shells.
drive and gear cover.
(4)  Install main bearing cap and evenly tighten
(2)  Refer to paragraph 11-9 and install the oil
pan.
(3)  Refer to paragraph 11-31 and install the
flywheel housing an(d flywheel.
(4)  Refer to paragraph 2-24 and install engine
in truck.
Section VII. CLYINDER BLOCK
(2)  Refer to TAM 10-3930-630-12 and remove
11-38. Description
the cylinder head and manifolds.
The cylinder block and( crankcase are cast as a single
(3)  Refer to paragraph 11-3 and remove the
unit. Bearing crosswalls and water baffles are filleted.
valve mechanism.
Honed cylinder bores are exposed to coolant for their
(4)  Refer to paragraph 11-7 and remove the oil
entire length.  Intake and exhaust ports are arranged
pan.
along the upper left side of the cylinder block. Directly
(5)  Refer to paragraph 11-10 an(d remove the
below the ports is a valve and tappet chamber enclose(l
oil pump.
by a cover. The camshaft extends the length of the left
(6)  Refer to paragraph 11-17 and remove the
side of the crankcase and rotates in three bearings.
pistons and connecting rods.
(7)  Refer to paragraph 11-21 and remove the
11-39. Cylinder Block, Removal and Disassembly
gear cam and fan drive.
a. Removal
(8)  Refer to paragraph 11-24 and remove the
(1)  Refer to paragraph 2-22 and remove the
camshaft.
engine from the truck.
11-27

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.